发布时间:2025-01-31 04:03:45
先用铁铲铲,剩一些污渍时再用硫酸洗一下就行了。
要么先铲,然后用细一点的纱布(纸)打磨一下就行了。
居住小区楼道走廊里面有一个白色扁平的线有大神知道是干什么用的线吗
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